Extrinsic 70725-1

{
  "heartbeat": {
    "blockNumber": 70724,
    "sessionIndex": 1178,
    "validatorsLen": 1,
    "authorityIndex": 0
  },
  "signature": "0xdebbda78fc7bfc67356caedf01cec6ded7bfcc58bbfa61441cfa7e0ae02cf24750a6fd9874f6788e818a5e367e05a77814a07ac7cc9e5348a1e99c268c726686"
}